Modified magnesium oxychloride cement product and preparation method thereof

Abstract

The invention discloses a modified magnesium oxychloride cement product and a preparation method thereof. The modified magnesium oxychloride cement product comprises the following components in part: 100 parts of light burned magnesium oxide powder (75-to-95-weight-percent MgO), 10 to 75 parts of magnesium chloride (absolute MgCl2), 100 to 150 parts of water, 2 to 50 parts of crystal whiskers, 0.02 to 0.5 part of crystal whisker surface modifier and 2 to 20 parts of anionic surfactant. The modified magnesium oxychloride cement product provided by the invention has high water resistance, excellent surface finishment and high breaking strength and is insusceptible to re-bittering. In addition, the problems of low mechanical strength and low surface finishment of products, serious wear of grinding tool and the like of reinforcement by glass fiber are solved effectively.

Description

[0001] technical field [0002] The invention belongs to the preparation technology of modified magnesium oxychloride cement, in particular to whisker and surfactant compound modified magnesium oxychloride cement and a preparation method thereof. [0003] technical background [0004] With the rapid development of my country's economic construction, people's demand for infrastructure materials such as cement and wood is increasing day by day. This makes energy crisis, environmental pollution and other issues more and more serious. Magnesium oxychloride cement products are widely used in construction, transportation, industrial , agriculture and other fields. [0005] However, magnesium oxychloride cement also has many disadvantages, such as easy cracking, warping deformation, poor water resistance, brine and frost, etc., which seriously restrict its development. [0006] Whisker is a high-performance reinforcing material with high strength, high modulus, wear resistance ...

AI Technical Summary

Problems solved by technology

[0008] technical problem: In order to solve the problems of poor water resistance of magnesium oxychloride cement, easy to return brine and blooming, poor mechanical strength and surface finish of glass fiber reinforced products, and serious abrasive wear during processing, the invention provides a modified oxychloride Magnesium cement product and its preparation method

And it effectively solves the problems of glass fiber reinforced products such as poor mechanical strength, poor surface finish, and severe abrasive wear during processing.

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